Electric iron



Patented Feb. 19, 1924.

UNITED STATES PATENT orner..

HILTON'l H. SHOENBERG, OF SAN FRANCISCO, CALIFORNIA, A SSIGNOB TO MAJESTIC ELECTRIC DEVELOPMENT COMPANY, F SAN FRANCISCO, CALIFORNIA., A COR- PORATION 0F CALIFORNIA.

ELECTRIC IRON.

Application led March 4, 1922. Serial No. 541,156.

To all lwhom. z't may concern:

Be it known that I, MILTON H. SuoaN- BERG, a citizen ofthe United States,and resident of the city and county of San Francisco, State of California, have invented new and useful Improvements in ElectricIrons, of which the following is a specification.

My invention has for its object an electric iron whose several parts are constructed and arranged to increase the efficiency of ironing therewith; to reducethe muscular strain on the operator; to increase the heat equalizin'g and heat retaining qualities over irons heretofore constructed; to simplify the construction and increase the reliability.

Other objects will appear from the drawin s and specifications which follow:

igure 1 is a side view of my iron.

Fig. 2 is a plan view of Fig. 1.

Fig. .3 is a cross section through the rear portion of the iron, showing the electrical connections and their manner of su port and attachment to the iron frame an is taken on the line III-' III of Fig. 2.

F ig. 4 is a section of the electric terminals and sheath parts of Fig. 3 taken on the line IV-IV thereof.

Fig. 5 shows a portion of the iron frame bent and drilled ready to receive the elec- 3 trical connections and 1s a section of the iron frame on the line V-V of Fig. 4 and of the frameof Fig.3 with certain of the parts removed.

Fi 6 is a side view of my iron on a reduce scale to show the an le of the handle and the manner in which this angular mounting contributes to a` reduction of muscular strainfor the operator. v

Fig. 7 is a diagrammatic showing of the windln of the heating elementl to secure the most e cient distribution of heat.

Fi .-8 is a reduced scale plan drawing of the ase of my iron having superimposed thereon a dotted line showing of the conven- 5 tional iron shape as heretofore constructed.

Fig. 9 is an enlar ed fragmentary cross section on the line I IX of Fi 8 of the outline of the conventional iron s own dotted in and a full line showing of a cross section Vof my iron to better illustrate the manner in which the metal is distributed to secure a rfect heat distribution and better heat ra iation.

Throughout the figures similar numerals refer to identical parts.

Referring particularly to Fig. 1 the iron consists of a base 1 and casing 2 and handle equally in order to concentrate the heat where most desired, as will be explained below.

Electric terminal connections at 10-10 are best shown in Figs. 3, 4, where the frame 2 is unched and bent as shownat 12 Fi 5. Insi ations 13, 14, 15, are then assemled about the hole 16 in the leaf 12 of the frame 2 and the connections 10-10 are thus insulated therethrough and fastened by conventional nuts. One of the terminals 9 is connected to each of these connecting posts 10-10. The sheath 5 is secured4 to the handle support 3 and spaced from the base frame 2, thereb preventing the transfer of excessive heat rom said frame and base.

At 18 Figs. 8 and 9 is shown by dotted lines Vthe outline of the conventional ironv base as distinguished from the shape I have adopted. By making thebase 1 thicker and by taking some of the metal from the sides and corners of the conventional form of iron and` building into the center of the base, see

Figs. 8 and 9, I secure a larger reservoir of heat which is readily distributed to or from the toe 21 and heel 22 of the iron andsecures at all times a perfect equalization `and a. high degree of heat retention, and this heat reservoir thus prevents scorching the Work on the one hander chilling the work on the other.

By reducing the width of this conventional base without changing the length or weight of my iron vI have better distributed the metal securing a thicker base creased thickness attained bein sh the dimension line 20, Fig. 9.

own by n this lway the in- A the heat is better retained and the iron more quickly and eiiiciently heated.

Particular attention'is directed to the anle' at which the handle 4 is mounted, see ig. (i.` A line normal to said handle. is

shown at 24 which is parallel with the average position of the forearm of the operator.

' the arrow 27 across the material being ironed the front of the iron is called upon to give up the greatest amount of. heat and it will be seen from the windingindicated in Fig. 7 that the resistance wire is concentrated at 6 whereby a large amount of heat 'suppl to the toe or front of the iron is secured. hen the iron movement isreversed as shown by the arrow 28, Fig. 6, the heel of the iron 22 is called upon to give the greatest amount of heat and this is provided for by the distribut8ion of the winding of the resistance wire at I claim:

1. In an electric iron a heating unit comprising an electrical resistance wound on insulation material of substantially flat wedge shape, said windings being spaced close together on the narrow part of the wedge, further apart overv the wide part of the wedge. i 2. In an. electric iron a heating unlt com,

prising an electrical resistance wound on insulation material of substantially flatwedge shape, said windings being spaced-close together onl the narrow part' of the wedge, further apart over the wide part of the wedge, and a space between said parts across which said windin are electrically connected..

{j -In an e ectric iron a heating unit comprismg an electrical resistance wou'nd on insulation material o'f substantially at wedge shape', said windings Abeing spaced close together on the narrow part of the wedge, fura smooth surface onthe oppositt'V which with ing a leaf formed integral therewith and extending upward at an angle and providing an opening-through saidcase and a support for electrical terminals.

5. An electric iron comprising parts asset forth in claim 3 and a casing which with said base encloses said unit, said casing having a leaf formed integral therewith and extending upward at an angle and providing an opening .through said case-anda support for electrical terminals, and electrical terminals connected through said opening to said unit.

6. lAn electric iron comprising parts as setA forth in claim 3 and a casing which with said base encloses said unit, sald casing havinga leaf formed integral therewith and ex tending upward atan angle and providing an opening through said case and a support for electrical terminals, and electrical terminals connected through said opening to said unit, and a sheath s aced from said casing and surrounding sai terminals. l

7 An electric iron having a handle spaced above said iron and. sloping upwardfrom the heel towardthe toe'of said' iron in combination with `parts as set forth in claim 6.

MiLToN H.A sHoENBEnG. 

